I would like to know if it is possible to set the reply to as a dynamic field to do the following.

For example if i had 3 account managers and each account manager had customers assigned. When the mass mailing is sent i would like to set the Reply-To field the Account Manager depending of the Customer.

The purpose is that, when the user gets the advertisement, if he/she wants to reply, they email would go directly to their Account Manager and not the address that sends the email (nonreply@domain.com).

The way that we were thinking is using some kind of tag, but i was not able to make this work.